1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.javafx.scene.shape; 27 28 import com.sun.javafx.geom.BaseBounds; 29 import com.sun.javafx.geom.transform.BaseTransform; 30 import com.sun.javafx.jmx.MXNodeAlgorithm; 31 import com.sun.javafx.jmx.MXNodeAlgorithmContext; 32 import com.sun.javafx.scene.DirtyBits; 33 import com.sun.javafx.scene.NodeHelper; 34 import com.sun.javafx.sg.prism.NGNode; 35 import com.sun.javafx.sg.prism.NGShape; 36 import com.sun.javafx.util.Utils; 37 import javafx.scene.Node; 38 import javafx.scene.paint.Paint; 39 import javafx.scene.shape.Shape; 40 41 /** 42 * Used to access internal methods of Shape. 43 */ 44 public abstract class ShapeHelper extends NodeHelper { 45 private static ShapeAccessor shapeAccessor; 46 47 static { 48 Utils.forceInit(Shape.class); 49 } 50 51 /* 52 * Static helper methods for cases where the implementation is done in an 53 * instance method that is overridden by subclasses. 54 * These methods exist in the base class only. 55 */ 56 57 public static Paint cssGetFillInitialValue(Shape shape) { 58 return ((ShapeHelper) getHelper(shape)).cssGetFillInitialValueImpl(shape); 59 } 60 61 public static Paint cssGetStrokeInitialValue(Shape shape) { 62 return ((ShapeHelper) getHelper(shape)).cssGetStrokeInitialValueImpl(shape); 63 } 64 65 public static com.sun.javafx.geom.Shape configShape(Shape shape) { 66 return ((ShapeHelper) getHelper(shape)).configShapeImpl(shape); 67 } 68 69 /* 70 * Methods that will be overridden by subclasses 71 */ 72 73 @Override 74 protected void updatePeerImpl(Node node) { 75 super.updatePeerImpl(node); 76 shapeAccessor.doUpdatePeer(node); 77 } 78 79 @Override 80 protected void markDirtyImpl(Node node, DirtyBits dirtyBit) { 81 shapeAccessor.doMarkDirty(node, dirtyBit); 82 super.markDirtyImpl(node, dirtyBit); 83 } 84 85 @Override 86 protected BaseBounds computeGeomBoundsImpl(Node node, BaseBounds bounds, 87 BaseTransform tx) { 88 return shapeAccessor.doComputeGeomBounds(node, bounds, tx); 89 } 90 91 @Override 92 protected boolean computeContainsImpl(Node node, double localX, double localY) { 93 return shapeAccessor.doComputeContains(node, localX, localY); 94 } 95 96 @Override 97 protected Object processMXNodeImpl(Node node, MXNodeAlgorithm alg, MXNodeAlgorithmContext ctx) { 98 return shapeAccessor.doProcessMXNode(node, alg, ctx); 99 } 100 101 protected Paint cssGetFillInitialValueImpl(Shape shape) { 102 return shapeAccessor.doCssGetFillInitialValue(shape); 103 } 104 105 protected Paint cssGetStrokeInitialValueImpl(Shape shape) { 106 return shapeAccessor.doCssGetStrokeInitialValue(shape); 107 } 108 109 protected abstract com.sun.javafx.geom.Shape configShapeImpl(Shape shape); 110 111 /* 112 * Methods used by Shape (base) class only 113 */ 114 115 public static NGShape.Mode getMode(Shape shape) { 116 return shapeAccessor.getMode(shape); 117 } 118 119 public static void setMode(Shape shape, NGShape.Mode mode) { 120 shapeAccessor.setMode(shape, mode); 121 } 122 123 public static void setShapeChangeListener(Shape shape, Runnable listener) { 124 shapeAccessor.setShapeChangeListener(shape, listener); 125 } 126 127 public static void setShapeAccessor(final ShapeAccessor newAccessor) { 128 if (shapeAccessor != null) { 129 throw new IllegalStateException(); 130 } 131 132 shapeAccessor = newAccessor; 133 } 134 135 public interface ShapeAccessor { 136 void doUpdatePeer(Node node); 137 void doMarkDirty(Node node, DirtyBits dirtyBit); 138 BaseBounds doComputeGeomBounds(Node node, BaseBounds bounds, BaseTransform tx); 139 boolean doComputeContains(Node node, double localX, double localY); 140 Object doProcessMXNode(Node node, MXNodeAlgorithm alg, MXNodeAlgorithmContext ctx); 141 Paint doCssGetFillInitialValue(Shape shape); 142 Paint doCssGetStrokeInitialValue(Shape shape); 143 NGShape.Mode getMode(Shape shape); 144 void setMode(Shape shape, NGShape.Mode mode); 145 void setShapeChangeListener(Shape shape, Runnable listener); 146 } 147 148 }